Building Acoustics Laboratory Impact Sound Insulation EN ISO 10140

Impact sound is the sound that is perceived when walking on a floor in the room above.
Ceiling overlays such as floor coverings, installation underlays, floating screeds and other products can significantly improve impact sound insulation. For the test, the respective ceiling overlay is applied to the ceiling in the upper room. A hammering mechanism is used to generate the impact sound excitation. In the lower room, the volume is measured before and after the installation of the ceiling overlay. The difference provides information about the impact sound insulation properties.

**Sketch of the test arrangement for the impact sound test. Above, the transmission room with the hammer mill; below, the reception room with the microphone. The component to be tested is beige**

Testing properties

Testing according to DIN EN ISO 10140 (all parts)
Assessment of impact sound insulation according to DIN EN ISO 717-2
Tapping machine according to DIN EN ISO 10140-5 Annex E
Conversion of measurement results according to ASTM E 989 with indication of IIC and ASTM E 2179 ΔIIC on request possible
Reference coverings for underlay materials according to DIN EN 16354 and technical data sheet TM1 - of the MMFA Association